Come here,and you'll have a great time.(改成含有条件状语从句的复合句)
同义句改：
I like English better than Chinese .____ I ____English _____ Chinese
I don't know how I should answer the question.I don't know ____ ____ ans wer the question.
What do you think of it?___ do you ____it?
改为感叹句：
I'm happy to make such great progress.
六点半止